I have a flock of seven one year old hens. Today I got four Salmon Faverolles...one rooster and three hens, the same age as my flock. Question is what are some things I should do while I quarantine them to make sure they are healthy? I have never wormed my current birds. I give them high quality feed with probios and DE some. I sprinkle DE in the house. Other than that I have no idea what to do. Should I worm? Dust with DE? Feed ACV? ALSO...my new rooster has raw red spots on his legs. Does this mean he has mites? The hens do not have those spots. If it is scaly leg mite, how do I treat it? They were all in the same pen together where I got them from. What should I watch for??